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Finding the Fourth Proportional to 2,792.94, 4,164.74 and 2,767.92

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Solution

The fourth proportional to 2,792.94, 4,164.74 and 2,767.92 is: 4,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.94 : 4,164.74 = 2,767.92 : x
  2. Step 2: Convert to fraction form
    2,792.94/4,164.74 = 2,767.92/x
  3. Step 3: Cross multiply
    2,792.94x = 4,164.74 × 2,767.92
  4. Step 4: Simplify right side
    2,792.94x = 11,527,667.14
  5. Step 5: Solve for x
    x = 11,527,667.14/2,792.94
  6. Step 6: Final answer
    x = 4,127.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.